ID: 20644
Updated by: [EMAIL PROTECTED]
Reported By: [EMAIL PROTECTED]
Status: Open
Bug Type: Documentation problem
Operating System: all
PHP Version: 4.3.0-dev
New Comment:
compare this to
$a = "a";
$a = $a + 1;
and
$a = "a";
$a = $a++;
++ is defined as increment, which may have different meanings on
different types
it is *not* defined as "is always the same as +=1 "
so it is definetly not a bug IHMO
the documentation issue is still valid
Previous Comments:
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[2002-11-27 04:24:49] [EMAIL PROTECTED]
it's still not a bug, and there was some discussion about this on
php-dev or some other list a while ago..can't find that now thouhg, but
there was also "fix" for this, but it was reverted. (iirc)
------------------------------------------------------------------------
[2002-11-27 02:56:32] [EMAIL PROTECTED]
Please explain how this is to be documented (why this isn't a bug) as I
fail to understand the seemingly inconsistent behavior of this
example:
$t = true;
$a = $t + 1; (same as $t += 1; // 2)
$b = ++$t;
print "a: $a b: $b"; // a: 2 b: 1
In otherwords, incrementing/decrementing a boolean keeps it as boolean
while adding an integer, such as 1, changes it to an integer.
Reclassifying as a scripting engine problem so php-dev gets this
report. Please provide a documentable reason for this behavior.
------------------------------------------------------------------------
[2002-11-27 01:49:34] [EMAIL PROTECTED]
Reclassified.
------------------------------------------------------------------------
[2002-11-27 01:24:49] [EMAIL PROTECTED]
it was really an user error, sorry.
i found than "++" operator doesn't make type conversion from boolean to
int, and if variable is boolean and equals TRUE than after ++ it
remains as TRUE, so
$a = TRUE; echo ($a++).$a;
produces output "11"
this behavior of increment operator was unexpected to me and i suppose
that it can be the same to others, so i wrote an user note at "type
juggling" part at online documentation
------------------------------------------------------------------------
[2002-11-26 20:37:54] [EMAIL PROTECTED]
Not known and most likely user error. Please provide a reproducing
script.
------------------------------------------------------------------------
The remainder of the comments for this report are too long. To view
the rest of the comments, please view the bug report online at
http://bugs.php.net/20644
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Edit this bug report at http://bugs.php.net/?id=20644&edit=1
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